Chair assembly



FIG. 1 is a perspective view of a chair assembly, showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is rear elevational view;

FIG. 4 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 5 is top plan view; and,

FIG. 6 is bottom plan view.

The broken lines in FIGS. 1-4 and 6 are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a chair assembly, as shown and described. 